Foxgojrd and jonathan warneb



J. R. FOXGORD & J. WARNER.

ROTARY ENGlNE.

APPLICATION FILED AUG-l2. 1913.

Patented Aug. 1, 1916.

2 SHEZITSSHEET I.

WITNESSES: 3 /.v Vzlvrozes. v/ V O \ZBFOXGO/QQ ATTORNEY.

.l. R. FOXGORD J. WARNER.

ROTARY ENGINE.

APPLICATION FILED AUG. 12, 1913.

Patented Aug. 1, 1916.

2 SHEETS- SHEET 2.

. WITNESSES: {.VVENTOAS,

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I B r v f -M I i M W 2 A ZTORNEK 1' OHN R. FOXGOJRJD AND JONATHANWARNER, OF SAN FRANCISCO, CALIFORNIA; SAID FOXGORD ASSIGrNOR T0 SAIDWARNER.

. ROTARY ENGINE.

Specification of Letters Patent.

Patented Aug. 1, 1916.

Application filed August 12, 1913. Serial No. 784,343.

citizen of the United'States, residing in the city and'county-of SanFrancisco, State of California, and JONATHAN WARNER, a subject of GreatBritain, and residing in said city and county and State, have inventedcertain new and useful Improvements in R0- tary Engines, whereof thefollowing is a specification.

Our invention relates to gas engines in a general way and moreparticularly to gas engines of the rotary type and has for its object tosimplify the construction of that class of machines, thereby reducingthe cost of manufacture and increasing their efiiciency.

With the above purpose in view our invention consists in a stationaryframe having a cylindrical chamber formed therein and provided withclosed flat ends; an eccentrically curved inner surface, a movablecylinder hereinafter called a rotor carrying pistons expansible againstsaid closed flat ends and eccentrically curved inner surface, cheeksexpansible against the flat ends, in combination with compressing,mixing and firing means. v

It also consists in the novel parts. combinations and arrangements, setforth in the following description and particularly pointed out in theclaims at the end'hereof.

For the purpose of explaining our invention we have in the accompanyingtwo sheeth of drawings forming a part of this application illustratedthe same in what we consider its best form.

In the drawings: Figure 1 is an elevation of a structure embodying ourinvention. Fig. 2 is a vertical sectional view taken along the dottedline a,'-a of Fig. 1. Fig. 3 is a view similar to Fig. l with one of theends removed to show the inner mechanism. Fig. 4 is a central sectionalview taken along the dotted line bb of Fig. 2. Fig. 5 is a plan view ofthe starting mechanism. Fig. 6 is an elevation of the startingmechanism. Figs. 7, 8 and 9 are detail views of the pistons carried bythe rotor of the engine.

The same symbol of reference marks the same part in whichever view. saidpart may appear. K

Describing now our invention in detail it comprises primarily astationary part and movable part called a rotor, along with which therego compression, mixing and firing means and various auxiliary devices.The stationary part as shown in Fig. 4 consists of a frame A, acylindrical chamber therein having an eccentrically curved inner surface2 and feet 3. It is also provided withan intake port 4, exhaust port 5and a spring actuated block 6 for preventing backfiring. The rotor 7 iscentrally mounted on the shaft 8 and consists of a wheel having annularchecks 9 and 10, set in grooves about the sides near the periphery ofthe wheel, and expanded apart by springs 11 against the flat innersurfaces of the cylnder heads. The wheel carries recesses 12 1n itsperiphery in which work pistons 13 actuated by springs 14 to engage thecurved face of chamber 1." Pistons 13 are provid ed wlth cheeks 15 and15 as shown in Figs. 7 and 8, which are expanded against the fiatcylinder heads by springs 16.

Figs. 7, 8'and 9 are plan side and end elevat ons respectively of onepiston and a plurahty of such pistons is used, three being shown in thedrawing, to avoid the possibility of stopping on a dead point.

The intake pgrt 4 is located at a point where the curvature of thesurface takes a sudderl'drop, so as to form a chamber 17 communicatingwith said intake port between the wall, the periphery of the wheel, andany piston. 13 lying ahead of said point. Back of the intake port aspring actuated block 6 works in a recess 18 in the stationary cylinderin sliding contact with the rotor, to prevent back firing.

Cams 19 and 20 are mounted onshaft 8. Cam 19 operates piston 21througharm 22 said piston compressing and mixing-air and gasoline in thecylinder 23. Cam 20 operates valve 24 through arm 25 said valvecontrolling the admission of the explosive mixture to the cylinder 23. Afiring plug 26 is inserted in substantially the position shown andoperated by any well known means.

For starting our device we provide a hand lever 27 pivoted to the shell,and a second lever 28 also pivoted to the shell. A link 29 joins the twolevers, and blocks 30 and 31 are fixed to said link. Pawls 32 and 33 arepivoted on arms 22 and 25 so as to engage blocks 30 and 31. Moving thehand lever moves the link 29 causing engagement be tween block and pawl32 and between block 31 and pawl 33, thus moving the arms longitudinallyafter the manner in which the cams l9 and 20 move them. Moving the armsmoves the compression, mixing valve and firing mechanism and so startsthe engine Having thus described our invention and believing we haveproduced useful and novel improvements in the art to which the sameappertains let it be understood that save do not wish to be limitedtothe exact construction and arrangement of the several parts composingthe same as many changes can be made without departing from the spiritthereof.

What we claim as new and desire to secure by United States LettersPatent is 1. In-a gas engine, a frame provided with a starting devicecomprising compression, valve and firing mechanism, a hand operatedlever pivoted on said frame, a second lever also pivoted to said frame,said levers having a connecting link secured thereon; blocks secured tosaid link, longitudinally movable arms connected to said valve andcompression mechanism,and pawls on said arms for engaging said blocks.

' 2. In a gas engine a stationary frame having a cylindrical chamberclosed at the ends and provided with an eccentric inner curved face andan exhaust port, a centrally mounted-rotor having spring actuatedpistons engaging said eccentric inner curved face, and provided withlateral actuateu oheeks engaging the inner surfacesof said ends, springslocated in said pistons for actuating said cheeks, a compressioncylinder having a piston, adapted to control an intake port to saidcylindrical chamber, and means connected to the main shaft to operatesaid piston.

In testimony that we claim the foregoing we have hereto set our hands inthe presence of two witnesses, this 7th day of Aug. 1913.

J OHN R. FOXGORD. JONATHAN WARNER. Witnesses:

EMILY WILDER, D. B. RICHARDS.

